/*
 * Copyright (c) 2014. Real Time Genomics Limited.
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the
 *    distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.rtg.util.bytecompression;

import java.io.IOException;
import java.io.InputStream;

/**
 */
final class SingleByteArray extends ByteArray {
  private final byte[] mData;

  SingleByteArray(final int size) {
    mData = new byte[size];
  }

  @Override
  public byte get(long offset) {
    return mData[(int) offset];
  }

  @Override
  public void get(byte[] dest, long offset, int count) {
    System.arraycopy(mData, (int) offset, dest, 0, count);
  }

  @Override
  public void set(long offset, byte value) {
    mData[(int) offset] = value;
  }

  @Override
  public void set(long offset, byte[] buffer, int count) {
    set(offset, buffer, 0, count);
  }

  @Override
  public void set(long offset, byte[] buffer, int bOffset, int count) {
    System.arraycopy(buffer, bOffset, mData, (int) offset, count);
  }

  public void load(final InputStream stream, final long offset, final int count) throws IOException {
    final int length = stream.read(mData, (int) offset, count);
    if (length != count) {
      throw new IOException();
    }
  }

  @Override
  public long length() {
    return mData.length;
  }
}
